Point (1) = {0, 0, 0, 0.5};
Point (2) = {10, 0, 0, 0.5};
Point (3) = {10, 10, 0, 0.5};
Point (4) = {0, 10, 0, 0.5};
Point (5) = {2, 5, 0, 0.1};
Point (6) = {7, 5.5, 0, 0.1};
Point (7) = {7, 4.5, 0, 0.1};
Point (8) = {8, 5, 0, 0.1};
CatmullRom (1) = {5, 6, 8, 7, 5};
Line (2) = {4, 3};
Line (3) = {3, 2};
Line (4) = {2, 1};
Line (5) = {1, 4};
Line Loop (8) = {2, 3, 4, 5, -1};
Plane Surface (8) = {8};

Translate {0,0,1} {
  Duplicata { Line{1}; }
}
